Yes it is a HD cable, it displays 480p (or was it 480i - I keep forgetting. Just check in the display settings).
For those of you with regular TV's: This cable works beautifully with it. You must have the inputs which not many regular TV's have. Zelda tends to be a bit blurry on my TV with the regular composite cables, but using component cables makes Zelda look very clear. I'm using the genuine Nintendo cables, not 3rd party.
Wii Music
15/06/2007 / Gold Coast, Queensland, Australia